Suffixation has remained the most productive way of word derivation through all historical periods. Though some of the OE suffixes were practically dead, many new suffixes developed from native and foreign sources.Native suffixes - suffixes:)Several OE suffixes of agent nouns -end (friend), -ere(fiscere) were lost as means of derivation; in ME -end, -en, -estre occur as inseparable parts of the stem.
The old suffixes of abstract nouns -ap, -op, -p, had long been dead in ME. The suffix -ness was equally productive in all historical periods. It was mainly used with adjectival stems, irrespective of their origin: ME derkness,, NE narrowness, (native stems); MEcleerness, NE politeness (borrowed stems).
new suffixes derived from noun root morphemes - A new suffix -man, developed from a root-morpheme in ME.Borrowed Suffixes - borrowed suffixes entered the English language with the two biggest waves of loan-words: French loans in ME and classical loans in Early NE. French loan-words with the suffix –able (agreeable). In Late ME the suffix -able began
to be used in adjective derivation — at first with Romance stems —admittable. The French suffix -ess produced many derivatives in ME, as it had replaced the native -estre; e.g.: ME authoress. The suffix -or (from Fr) resembled the native suffix –er.